Table of Contents

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Census of Population and Housing, 1990 [United States]: Public Use Microdata Sample: 5-Percent Sample (ICPSR 9952)

Principal Investigator(s):
United States Department of Commerce. Bureau of the Census

Summary:

The Public Use Microdata Sample (PUMS) 5-Percent Sample
contains household and person records for a sample of housing units
that received the "long form" of the 1990 Census questionnaire. Data
items cover the full range of population and housing information
collected in the 1990 Census, including 500 occupation categories, age
by single years up to 90, and wages in dollars up to $140,000. Each
person identified in the sample has an associated household record,
containing information on household characteristics such as type of
household and family income.

The Public Use Microdata Sample (PUMS) 5-Percent Sample
contains household and person records for a sample of housing units
that received the "long form" of the 1990 Census questionnaire. Data
items cover the full range of population and housing information
collected in the 1990 Census, including 500 occupation categories, age
by single years up to 90, and wages in dollars up to $140,000. Each
person identified in the sample has an associated household record,
containing information on household characteristics such as type of
household and family income.

Study Description

Citation

U.S. Dept. of Commerce, Bureau of the Census. CENSUS OF POPULATION AND HOUSING, 1990 [UNITED STATES]: PUBLIC USE MICRODATA SAMPLE: 5-PERCENT SAMPLE. 3rd ICPSR release. Washington, DC: U.S. Dept. of Commerce, Bureau of the Census [producer], 1995. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 1996. https://doi.org/10.3886/ICPSR09952.v3

(1) All PUMS files were resupplied by the Census
Bureau during the summer of 1993 and Group Quarters data were
resupplied in 1996. ICPSR has incorporated extensive user notes into
the machine-readable codebook. The Revised Group Quarters data files
contain group quarters data that supersede those included in the full
data files (Datasets 0001 through 0056). The group quarters variables
with errors in the original files are POWSTATE, POWPUMA, MIGSTATE, and
MIGPUMA. These errors are corrected in the Revised Group Quarters Data
files. (2) Although all records are 231 characters in length, each
file is hierarchical in structure, containing a housing unit record
followed by a variable number of person records. Both record types
contain approximately 120 variables. Two improvements over the 1980
PUMS files have been incorporated. First, the housing unit serial
number is identified on both the housing unit record and on the person
record, allowing the file to be processed as a rectangular file. In
addition, each person record is assigned an individual weight,
allowing users to more closely approximate published reports. Unlike
previous years, the 1990 PUMS 1-Percent and 5-Percent Samples have not
been released in separate geographic series (known as "A," "B,"
etc. records). Instead, each sample has its own set of geographies,
known as "Public Use Microdata Areas" (PUMAs), established by the
Census Bureau with assistance from each State Data Center. The PUMAs
in the 5-Percent Sample are based on counties and places within
states. Each PUMA is a county or place, or groups thereof, except when
the county or place contains more than 200,000 inhabitants. In that
case, the county or place is divided into several PUMAs. PUMAs in this
5-Percent Sample do not cross state lines.

Methodology

Sample:
A stratified sample, consisting of a sub-sample of the
household units that received the 1990 Census "long-form"
questionnaire (approximately 15.9 percent of all housing units).

Data Source:

self-enumerated questionnaires

Version(s)

Original ICPSR Release: 1993-04-09

Version History:

2006-01-12 All files were removed from dataset 85 and flagged as study-level files, so that they will accompany all downloads.

2006-01-12 All files were removed from dataset 83 and flagged as study-level files, so that they will accompany all downloads.

2006-01-12 All files were removed from dataset 82 and flagged as study-level files, so that they will accompany all downloads.

2006-01-12 All files were removed from dataset 81 and flagged as study-level files, so that they will accompany all downloads.

2006-01-12 All files were removed from dataset 80 and flagged as study-level files, so that they will accompany all downloads.